CN101783944B - Wireless image and electric power transmission device and wireless image and electric power transmission method - Google Patents

Wireless image and electric power transmission device and wireless image and electric power transmission method Download PDF

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Publication number
CN101783944B
CN101783944B CN2009103001819A CN200910300181A CN101783944B CN 101783944 B CN101783944 B CN 101783944B CN 2009103001819 A CN2009103001819 A CN 2009103001819A CN 200910300181 A CN200910300181 A CN 200910300181A CN 101783944 B CN101783944 B CN 101783944B
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China
Prior art keywords
unit
receipts
induction coil
bill
current
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Expired - Fee Related
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CN2009103001819A
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Chinese (zh)
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CN101783944A (en
Inventor
杜明育
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Application filed by Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Priority to CN2009103001819A priority Critical patent/CN101783944B/en
Priority to US12/508,588 priority patent/US20100176923A1/en
Publication of CN101783944A publication Critical patent/CN101783944A/en
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Publication of CN101783944B publication Critical patent/CN101783944B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24Inductive coupling
    • H04B5/26Inductive coupling using coils
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a wireless image and electric power transmission device, which comprises a first receiving/transmitting unit and a second receiving/transmitting unit. The first receiving/transmitting unit and the second receiving/transmitting unit comprise an induction coil, a modulating unit, a current changing unit, a coding/decoding unit, a storage unit and a microprocessor respectively, wherein the induction coil is used for receiving/transmitting a carrier signal; the modulating unit is used for modulating and recovering the carrier signal; the current changing unit is used for performing alternating-direct current conversion on a current; the coding/decoding unit is used for coding/decoding image data and user command information; the storage unit is used for storing the image data and providing system operating space for the first and second receiving/transmitting units; and the microprocessor is used for controlling the induction coil, the modulating unit, the current changing unit, the coding/decoding unit and the storage unit according to a user command and performing wireless image and electric power transmission. The invention also relates to a wireless image and electric power transmission method.

Description

Wireless imaging and power transfer and method
Technical field
The present invention relates to a kind of wireless imaging and power transfer and method, relate in particular to a kind of wireless imaging and power transfer and method that is applied between portable type electronic product and the display device.
Background technology
Existing electronic product, all with pursue miniaturization, portable be target.Yet the portable type electronic product of miniaturization, its volume of battery also must be restricted, and the capacity of battery is also less, so the supply of electrical energy duration of electronic product is shorter.In addition; Existing electronic product also all trends towards the amusement multifunction, for example can utilize electronic product capture video and image, also can be in these electronic products store video or image; Can these videos of direct viewing or image on the screen of electronic product; Yet electronic product is owing to be limited by the volume of its miniaturization, and its screen size must be restricted, so can not be satisfactory on the demonstration of video or image and the appreciation effect.As desire on bigger screen, to view and admire video or image; Existing way is to connect electronic product and display device with data wire; Image data is through the data wire transmission; But be to use data wire to connect electronic product and display device, electronic product must be positioned near the display device, and its use is restricted.In addition; Existing electronic product generally all comes electric energy transmitting to charge through cable; Frequently plug data wire and cable at electronic product and display device, can influence the useful life of electronic product and display device undoubtedly, make the use of electronic product be restricted simultaneously.
Summary of the invention
In view of this, be necessary to provide a kind of wireless imaging and the power transfer of wireless transmission image data and electric energy between electronic product and display device simultaneously.
Also be necessary to provide the wireless imaging and the method for electric energy transfer of this wireless imaging of a kind of application and power transfer.
A kind of wireless imaging and power transfer, it comprises one first receipts/bill unit and one second receipts/bill unit, and the said first receipts/bill unit places an electronic product inner, and the said second receipts/bill unit places a display device.The said first receipts/bill unit comprises one first induction coil, one first modulation unit, one first current transforming unit, one first coding/decoding unit, one first memory cell, the power supply circuits that a first microprocessor and links to each other with said first current transforming unit.The said second receipts/bill unit comprises one second induction coil, one second modulation unit, one second current transforming unit, one second coding/decoding unit, one second memory cell and one second microprocessor.
Said first, second induction coil is used for reception/emission radio-frequency carrier signal; When said first induction coil is launched radio-frequency carrier signal; Said second induction coil is used to receive the said radio-frequency carrier signal of said first induction coil emission; When said second induction coil was launched radio-frequency carrier signal, said first induction coil was used to receive the said radio-frequency carrier signal of said second induction coil emission.
Said first, second modulation unit be respectively applied for the emission of modulation said first induction coil and said second induction coil with carrier signal and respectively will said first induction coil and the carrier signal that receives of said second induction coil reduce.
Said first, second current transforming unit is used for AC-DC and direct current becomes the current conversion that exchanges; When said first current transforming unit converts alternating current into direct current; Direct current after the conversion is exported to said power supply circuits; When said first current transforming unit converts direct current into alternating current; Alternating current after the said conversion is exported to said first induction coil, when said second current transforming unit converts direct current into alternating current, the alternating current after the said conversion is exported to said second induction coil.
Said power supply circuits are used for the said first current transforming unit unsteady flow after-current is offered said electronic product, as the electric power of said electronic product system operation.
The said first coding/decoding unit is used for the instruction of image data or user input in said first memory cell is encoded or with the controlled instruction of decoding of the control routine of the said first said reduction in modulation unit; The said second coding/decoding unit is used for the instruction of image data or user input in said second memory cell is encoded or the coded message of will the said second modulation unit being reduced is decoded and obtained image data or control command; Data or user input instruction offer the said first modulation unit and carry out the modulation of carrier signal in first memory cell of the said first coding/decoding unit after with said coding; Perhaps the control command with said decoded said first modulation unit reduction feeds back to said first microprocessor; The control command that desire is launched in the said second coding/decoding unit offers the said second modulation unit and carries out the modulation of carrier signal, obtains image data or user instruction after will decoding respectively and transfers to said second memory cell.
Said first, second storage unit is used for storing image data and is respectively the space that said first and second receipts/bill unit provides system's operation; Said first memory cell is stored up the image data of said electronic product, and said second memory cell is stored up image data or the user instruction that obtains after the said second coding/decoding unit decodes.
Said first, second microprocessor is respectively applied for said first, second induction coil of control; The one the second modulation unit; First, second current transforming unit, first, second coding/decoding unit and first, second memory cell are carried out the transmission of wireless imaging and electric energy.
A kind of wireless imaging transmission method of using above-mentioned image and power transfer, it comprises the steps:
Identification electronic product and display device;
Determine whether to carry out wireless imaging and/or wireless power transmission based on user instruction;
Carry out the wireless imaging transmission, the step of said wireless imaging transmission comprises:
The said first receipts/bill unit is with the image data coding and generate alternating current, in conjunction with the image data behind the coding said alternating current is modulated, and generates carrier signal, launches said carrier signal;
The said carrier signal of the said first receipts/bill of said second receipts/bill unit's reception unit emission; Carrier signal to receiving is carried out demodulation; The image data that obtains encoding; The image data of the coding that demodulation is obtained is decoded, and obtains image data, storage or show, play said image data;
First receipts/bill the unit judges whether to finish the image transmission based on user instruction, if, then finish the image transmission, if not, then continue the image transmission;
Carry out wireless power transmission, the step of said wireless power transmission comprises:
The first alternating current that generates of the said second receipts/bill is with the energy of the said alternating current of emission of radio frequency signals;
The induction of said first receipts/bill unit, receive the energy of the said second receipts/bill unit with the said alternating current of emission of radio frequency signals; Alternating current to sensing is transformed to direct current, and it is that said electronic product provides systematic electricity that said power supply circuits utilize the direct current after the said conversion;
Judge whether to finish electric energy transmitting based on user input instruction, if then finish electric energy transmitting, if not, then continue electric energy transmitting.
With respect to prior art; Described wireless imaging and power transfer and method utilize the less radio-frequency principle can realize image and the wireless interaction of electric energy between electronic product and display device; The image data of electronic product can be synchronously appreciated having on the display device of large-screen more synchronously; Improve display effect, avoided using data wire to connect all inconvenience of electronic product and display device simultaneously, in addition; Electronic product carries out the image data transmission with display device when; This wireless imaging and power transfer can be again to supply the electric energy of system electronic product systems operation or for the electronic product charging, not only save the energy the Conversion of energy of less radio-frequency, can improve the battery flying power of electronic product again.
Description of drawings
Fig. 1 is the sketch map of wireless imaging of the present invention and power transfer;
Fig. 2 is the functional block diagram of wireless imaging and the power transfer of Fig. 1;
Fig. 3 is the flow chart of wireless imaging of the present invention and method of electric energy transfer;
Fig. 4 is the flow chart of wireless imaging transmission of wireless imaging and the method for electric energy transfer of Fig. 3;
Fig. 5 is the flow chart of wireless power transmission of wireless imaging and the method for electric energy transfer of Fig. 3.
Embodiment
To combine accompanying drawing that the present invention is done one below specifically introduces.
See also Fig. 1; A kind of wireless imaging of the present invention and power transfer comprise 100 and 1 second receipts/bill unit 200 of one first receipts/bill unit; The said first receipts/bill first 100 places an electronic product 300 inside, and the said second receipts/bill first 200 places a display device 400 inside.
The first 100 and second receipts/bill of said first receipts/bill unit 200 all can receive or emitting radio frequency signal, passes through the mutual realization image data and the transmission of electric energy between electronic product 300 and display device 400 of radio frequency signal between the two.
In this execution mode, said electronic product 300 is a digital camera, and said display device 400 is a LCD.
See also Fig. 2; The said first receipts/bill first 100 comprises one first induction coil 11; The one one first modulation unit 12 that links to each other with said first induction coil 11; One first current transforming unit 13 that links to each other with the said first modulation unit 12; First memory cell 15 and one that the one first coding/decoding unit 14, that links to each other with the said first modulation unit 12 is connected with the said first coding/decoding unit 14 is connected the first microprocessor 16 of the said first modulation unit 12, first current transforming unit 13 and the first coding/decoding unit 14, and said first current transforming unit 13 also connects power supply circuits 17 and a charging circuit 18.
Said first induction coil 11 is used for reception/emission radio-frequency carrier signal, to carry out image data and electric energy transmitting.
The said first modulation unit 12 is used for the image data modulated carrier signal according to said electronic product 300; And the carrier signal after will modulating is exported to said first induction coil 11; And receive carrier signal, and the carrier signal reduction that receives is obtained information encoded from the said second receipts/bill first 200.
Said first current transforming unit 13 is used to change current characteristics; It can carry out AC-DC conversion; When interchange converts direct current into; Direct current after the said conversion is exported to said power supply circuits 17, electric power is provided, perhaps export to said charging circuit 18 with power storage to give said electronic product 300; When direct current converts interchange into, provide said first induction coil, 11 emitting radio frequency signals required alternating current.
Offer the said first modulation unit 12 after the said first coding/decoding unit 14 is used for image data or user instruction information encoded and carry out the modulation of carrier signal, perhaps will be reduced to control command through the control routine decoding after 12 reduction of the first modulation unit and feed back to said first microprocessor 16 and carry out corresponding actions.
Said first memory cell 15 is used for the image data of store electronic product 300 and is the space that the said first receipts/bill first 100 provides system's operation.
Said first microprocessor 16 carries out the transmission and the reception of image and electric energy in order to the first modulation unit 12, first current transforming unit 13 and the first coding/decoding unit 14 of coordinating this first receipts/bill first 100 based on user input or the control command from said second receipts/bill unit 200 that receives.
Said power supply circuits 17 are used for the electric current after said first current transforming unit, 13 unsteady flows is offered said electronic product 300, as the electric power of said electronic product 300 systems operation.
Said charging circuit 18 is used for the electric current after said first current transforming unit, 13 unsteady flows is offered the battery of said electronic product 300, as the reserve power of electronic product 300.
The said second receipts/bill first 200 comprises one second induction coil 21; The one one second modulation unit 22 that links to each other with said second induction coil 21; One second current transforming unit 23 that links to each other with the said second modulation unit 22; The one second coding/decoding unit 24 that links to each other with the said second modulation unit 22; The display screen unit 26, one that one second memory cell 25, that links to each other with the said second coding/decoding unit 24 links to each other with said second memory cell 25 compiles and separates with the said second modulation unit 22, second current transforming unit 23 and second/code element 24 second microprocessor 27 that links to each other.
Said second induction coil 21 is used for reception/emitting radio frequency signal, to carry out data and electric energy transmitting.
The said second modulation unit 22 is used for the radio-frequency carrier signal reduction that receives from first receipts/bill unit 100, obtains coded message and based on the user instruction modulated carrier signal, and carrier signal is exported to said first induction coil 11.
Said second current transforming unit 23 is used to change current characteristics; In this execution mode; It mainly act as and converts direct current into alternating current, required alternating current so that said second coil, 21 emitting radio frequency signals to be provided, and its power supply with said display device 400 links to each other.
The said second coding/decoding unit 24 is used to decode by the coded message that obtains after the said second modulation unit, 22 reduction, obtains image data or control command, and perhaps the control command coding with the desire emission supplies the said second modulation unit 22 modulated carrier signals.
Said second memory cell 25 be used to store through said second coding unit decoding to image data or command information and the space that provides system to move for said second receipts/bill unit 200.
The second modulation unit 21, second current transforming unit 22 and the second coding/decoding unit 24 that said second microprocessor 27 is used for coordinating based on user input or the control command from said second receipts/bill unit 200 that receives this second receipts/bill first 200 carry out the transmission of image and electric energy.
Said display screen unit 26 is used to show, play the image data that is received from the said first receipts/bill first 100.
When the said first receipts/bill first 100 is worked, need not special power supply electric power is provided, it is converted into the electric energy of confession self use through induction second receipts/bill unit 200 electromagnetic energies.
Make said wireless imaging and power transfer carry out the transmission of wireless imaging and electric energy normally; Distance between said first receipts/bill unit 100 and the said second receipts/bill unit 200 needs in certain scope, with the decay of the elimination radiofrequency signal influence to normal wireless imaging and electric energy transmitting function.According to Ampere's law, during the electric current flowing through coil, the magnetic field intensity that forms magnetic field around the said coil can adopt following formula to calculate:
H = I · R 2 2 ( R 2 + d 2 ) 3
Wherein, H represents magnetic field intensity, and I represents the current strength of flowing through coil, and R represents the radius of coil; The d representative is apart from the distance of hub of a spool; Therefore, make the magnetic field intensity of certain distance be enough to carry out wireless imaging and electric energy transmitting, can realize through the current strength of change flowing through coil and the radius of coil like desire.
In addition, the aerial rate of decay of radiofrequency signal is also relevant with the frequency of radiofrequency signal, and the frequency of radiofrequency signal is high more, and its rate of decay is low more, and the distance of transmission is long more.Wireless imaging of the present invention and power transfer when carrying out wireless imaging and electric energy transmitting; Said first receipts/bill unit 100 and second receipts/bill first 200 should try one's best each other near; Be said electronic product 300 with said display device 400 should be as far as possible near, to reduce the loss in the power transfer process.
In the practical application; Said display device 400 can be provided with an induction platform (figure does not show); It is inner that said second Transmit-Receive Unit 200 is arranged at said induction platform; Said electronic product 300 is positioned over when carrying out image and electric energy transmitting on the said induction platform, and said first induction coil, 11 second induction coils 21 are aligned, so that the energy loss in wireless imaging and the electric energy transmitting process is reduced to minimum.
See also Fig. 3, be depicted as a kind of wireless imaging of said wireless imaging and power transfer and flow chart of method of electric energy transfer used, it comprises the steps:
S50 discerns said electronic product 300 and display device 400.21 emissions of said display device 400 second induction coils cover the radiofrequency signal of certain space scope; In case said electronic product 300 gets into the coverage of this radiofrequency signal; Its first line of induction 11 figure can sense said radiofrequency signal, and and said display device 400 between set up wireless connections.
S60 determines whether to carry out wireless imaging and/or wireless power transmission based on user instruction.Display device or electronic product are according to the instruction of user's input, and to the request of wireless imaging and power transfer transmission wireless imaging and/or wireless power transmission, wireless imaging and electrical energy devices carry out wireless imaging and/or wireless power transmission according to request.
S70 carries out the wireless imaging transmission.
S80 carries out wireless power transmission.
If the request that wireless imaging and power transfer 100 are received is the image transmission; Execution in step S70 then; If the request that wireless imaging and power transfer 100 are received is an electric energy transmitting; Execution in step S80 then, if the request that wireless imaging and power transfer 100 are received is image and electric energy transmitting, then execution in step S70 and S80 simultaneously.
See also Fig. 4, said wireless imaging transmission also comprises the steps:
Utilize the first image data that sends of the said first receipts/bill, it may further comprise the steps:
S701 encodes image data;
S702 generates alternating current;
S703 modulates said alternating current in conjunction with the image data behind the coding, generates carrier signal;
S704, it is first to launch said carrier signal to the second receipts/bill;
Utilize the first image data that receives of the said second receipts/bill, it may further comprise the steps:
S705 receives said carrier signal;
S706 carries out demodulation to the carrier signal that receives, the image data that obtains encoding;
S707, the image data of the coding that demodulation is obtained is decoded, and obtains image data;
S708, storage perhaps shows, plays said image data;
The said then first receipts/bill execution in step S709 of unit judges whether to finish the image transmission based on user instruction, if, then finish the image transmission, if not, return step S701, continue the image transmission.
See also Fig. 5, the further comprising the steps of following steps of said wireless power transmission method:
Utilize the first emission of said second receipts/bill electric energy, it comprises the steps:
S801 generates alternating current;
S802 is with energy to the first receipts/bill unit of the said alternating current of emission of radio frequency signals;
Utilize the first electric energy that receives of the said first receipts/bill, it may further comprise the steps:
S803, the energy of induction, the said alternating current of reception;
S804 is transformed to direct current to the alternating current of sensing;
S805 utilizes said direct current that systematic electricity or charging are provided;
S806 judges whether to finish electric energy transmitting based on user input instruction, if, then finish electric energy transmitting, if not, then return step S801, continue electric energy transmitting.
Described wireless imaging and power transfer and method utilize the less radio-frequency principle can realize image and the wireless interaction of electric energy between electronic product and display device; The image data of electronic product can be synchronously appreciated having on the display device of large-screen more; Improved display effect; Avoided simultaneously using data wire to connect all inconvenience of electronic product and display device; In addition, electronic product carried out the image data transmission with display device when, this wireless imaging and power transfer can perhaps be the electronic product charging with the electric energy that the Conversion of energy of less radio-frequency is moved for the sub-product systems of power supply again; Not only save the energy, can improve the battery flying power of electronic product again.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims (6)

1. wireless imaging and power transfer, it comprises: one first receipts/bill unit and one second receipts/bill unit, the said first receipts/bill unit places electronic product inside; The said second receipts/bill unit places a display device, and the said first receipts/bill unit comprises one first induction coil, one first modulation unit; One first current transforming unit, one first coding/decoding unit, one first memory cell; The power supply circuits that one first microprocessor and links to each other with said first current transforming unit; The said second receipts/bill unit comprises one second induction coil, one second modulation unit, one second current transforming unit; One second coding/decoding unit, one second memory cell and one second microprocessor;
Said first, second induction coil is used for reception/emission radio-frequency carrier signal; When said first induction coil is launched radio-frequency carrier signal; Said second induction coil is used to receive the said radio-frequency carrier signal of said first induction coil emission; When said second induction coil was launched radio-frequency carrier signal, said first induction coil was used to receive the said radio-frequency carrier signal of said second induction coil emission;
Said first, second modulation unit be respectively applied for the emission of modulation said first induction coil and said second induction coil with carrier signal and respectively will said first induction coil and the carrier signal that receives of said second induction coil reduce;
Said first, second current transforming unit is used for AC-DC and direct current becomes the current conversion that exchanges; When said first current transforming unit converts alternating current into direct current; Direct current after the conversion is exported to said power supply circuits; When said first current transforming unit converts direct current into alternating current; Alternating current after the said conversion is exported to said first induction coil, when said second current transforming unit converts direct current into alternating current, the alternating current after the said conversion is exported to said second induction coil;
Said power supply circuits are used for the said first current transforming unit unsteady flow after-current is offered said electronic product, as the electric power of said electronic product system operation;
The said first coding/decoding unit is used for the instruction of image data or user input in said first memory cell is encoded or with the controlled instruction of decoding of the control routine of the said first said reduction in modulation unit; The said second coding/decoding unit is used for the instruction of image data or user input in said second memory cell is encoded or the coded message of will the said second modulation unit being reduced is decoded and obtained image data or control command; Data or user input instruction offer the said first modulation unit and carry out the modulation of carrier signal in first memory cell of the said first coding/decoding unit after with said coding; Perhaps the control command with said decoded said first modulation unit reduction feeds back to said first microprocessor; The control command coding that desire is launched in the said second coding/decoding unit offers the said second modulation unit and carries out the modulation of carrier signal, obtains image data or user instruction after will decoding respectively and transfers to said second memory cell;
Said first, second storage unit is used for storing image data and is respectively the space that said first and second receipts/bill unit provides system's operation; Said first memory cell is stored up the image data of said electronic product, and said second memory cell is stored up image data or the user instruction that obtains after the said second coding/decoding unit decodes;
Said first, second microprocessor is respectively applied for said first, second induction coil of control; The one the second modulation unit; First, second current transforming unit, first, second coding/decoding unit and first, second memory cell are carried out the transmission of wireless imaging and electric energy.
2. wireless imaging as claimed in claim 1 and power transfer; It is characterized in that: the said first receipts/bill unit also comprises a charging circuit that links to each other with said first current transforming unit; Said charging circuit is used for the electric current after the said first current transforming unit unsteady flow is offered the battery of said electronic product, is said electronic product reserve power.
3. wireless imaging as claimed in claim 1 and power transfer; It is characterized in that: the said second receipts/bill unit also comprises the display screen unit that said second memory cell links to each other, and said display screen unit is used to show, plays and be received from the first image data of the said first receipts/bill.
4. wireless imaging as claimed in claim 1 and power transfer; It is characterized in that: said display device comprises an induction platform; The said first receipts/bill unit is arranged in the said induction platform, and said first induction coil and second induction coil align each other.
5. wireless imaging and method of electric energy transfer, its application is carried out like each described wireless imaging of claim 1 to 4 and power transfer, it is characterized in that comprising the steps:
Discern said electronic product and display device;
Determine whether to carry out wireless imaging and/or wireless power transmission based on user instruction;
Carry out the wireless imaging transmission, the step of said wireless imaging transmission comprises:
The said first receipts/bill unit is with the image data coding and generate alternating current, in conjunction with the image data behind the coding said alternating current is modulated, and generates carrier signal, launches said carrier signal;
The said carrier signal of the said first receipts/bill of said second receipts/bill unit's reception unit emission; Carrier signal to receiving is carried out demodulation; The image data that obtains encoding; The image data of the coding that demodulation is obtained is decoded, and obtains image data, storage or show, play said image data;
First receipts/bill the unit judges whether to finish the image transmission based on user instruction, if, then finish the image transmission, if not, then continue the image transmission;
Carry out wireless power transmission, the step of said wireless power transmission comprises:
The first alternating current that generates of the said second receipts/bill is with the energy of the said alternating current of emission of radio frequency signals;
The induction of said first receipts/bill unit, receive the energy of the said second receipts/bill unit with the said alternating current of emission of radio frequency signals; Alternating current to sensing is transformed to direct current, and it is that said electronic product provides systematic electricity that said power supply circuits utilize the direct current after the said conversion;
Judge whether to finish electric energy transmitting based on user input instruction, if then finish electric energy transmitting, if not, then continue electric energy transmitting.
6. wireless imaging as claimed in claim 5 and method of electric energy transfer is characterized in that: said wireless power transmission method also comprises step: it is said electronic product charging that said charging circuit utilizes said direct current.
CN2009103001819A 2009-01-14 2009-01-14 Wireless image and electric power transmission device and wireless image and electric power transmission method Expired - Fee Related CN101783944B (en)

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US12/508,588 US20100176923A1 (en) 2009-01-14 2009-07-24 Wireless transmission apparatus and method

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